Brake and door control device



Jan. 26, 1932'. U, A, WHITAKER 1,842,487

BRAKE AND Doon CONTROL DEVICE Filed Nov. 1e, A1929 ATTORNEY i isaiasi Uwzsms PATENT "UNoAs A; wHITAKnn;lbfciia". CANTON, omd'nssmNoniTo `THE wEsTINeHoUsE am Price A e u BRAKE ooMPANY;o`FWIL1usRpING; PENNSYLVANIA; n CORPORATION or rnNN` coNTItoL` nnvrcn Abpiiatin sled Novemberie, i929.V serian No; 407,605.

`This invention relatestowcontrol devices;

and has forits principal object, the provision of an improved mechanism `adaptedtobe controlled by one foot of an operator `for controlling the operation of af plurality vof con-` trolvalvedevices, such as,` for instance,l the brake and door` controlling valve devices of a` vehicle which V devices are A usually operated byhand.

"Anotherobject lof the inventionis pro'- W vide novel foot pedal mechanism whereby an "operator, by the use of one foot, may control `thepindep'endent operation of` each ofa plurality of control valve devices;` f

` in the following y Another object of the 'inventionrisfto pro-y` vide a foot controlled mechanism comprising aplurality` oi foot pedals wherebyfan oper-` ator, by the use of onevfoot,` maycontrol the independent, operation of each of a plurality p of `control valve devices, `and a furthenobjectis to "connect the foot pedals lin such a mannerjthat` they may,` L at all" times; be enfA gaged by the operatorsfoot. y Other objects and advantages will appear more` detailed description of the invention.

` In the accompanying ldrawingsrFiguie 1 is an elevational View, partly in sectionyofa toot controlled` mechanism embodying my invention and particularly adapted `for controlling thebperation of a brake valve del vice and a doorcontrolling valve devicepthe brake valve device being shown inrelease position and thedoor controlling valve "device in door closed position; Fig.l 2 is aragmentary elevational view `:illustrating the `manner of operating the mechanism to control the openingof a door o r doors of; avehicle; Fig. `3 is a sectional viewtaken on the line ofFig. 1, theoperators shoe vbeing shownfin` full lines; il is an"` enlarged fragmentary sectional view taken on the lineV `l-1l of-Fig. 1, theIA mechanismbeinglshown in foot off" position; Fig. Awisfa sectional view taken on the line 5415 of Fig. 4;; F i

6 is a view like Figg except" that the mechanism is shown in'pedal oil'. position,` the oper-` ating pedals` being shown dot and dash lines to illustratehow the brake valve operating pedal is remained;` and Figqf? a sectinfu awaken@ ai@ 1in@ 7 7 of rig.` e.

En the `drawings `my improved `foot con trolled mechanism is illustrated in connection 'with Va brakevalve `device l and a door con# trolling valve device 2 which are especially adapted for usein a` safety car control equip# ment, but it is to be understood that this mechanism may be used .in-any other equipment where it is desiredto have an operator control. theoperationof `a plurality of control valvedevices,by theuse ofonefoot. `The brake `valve device may i comprise `a casing containing a rotaryfvalve 3 having any desired arrangeinentof ports and cavities for controlling the brakes ot a vehicle, This valve `3 isfprovided with an operating stem 4 which is; arranged within a hollow! cxtension 5 of the `casing andjisj suitably jonrnailejdin the casing.' Within the hollow eX- tension ,5, and.` surrounding the @operating stem 4, is a torsion spring 6 having its inner end anchored to the casing and yits outer end anchored to a collar 7 securedl to the operating ,stem by4 a pin 8. This spring is preferably under initialptorsion so that, at alltimes, it tendsto rotatethe operating stemlin a clockwise direction. @The outer Aend portion of theoperating stemde` is made square and upon this portion,

an operatinglever or pedal 9, hereinafter which pedal, at its outer end is provided with a toe pad 10 adapted to beengaged by the iront portion of the sole of the operators shoe. s A y f Insafety car control equipment it is desirable that' the` brake valve device have a `pedal oli position as `shown in Figs.` 6 and 7 ci the drawings, a foot ofi position as shown called the toe pedalyis removably mounted,

9 from the stem 4, he removes his foot from the pedal, permitting the power of the torsion spring 6 to'rotate the stem 4, rotary valve v 3 and toe pedal in a clockwise direction until a lug 12 engages a stop 13 rigid with the extension 5 of the casing, at which time the arm of the pedal will be wholly outside of the slot 11 in the casing.

In safety car control equipment, an application of the brake, preferably Aan emergency application, will be effected when the toe n pedal 9 is operated to foot off position, thus insuring the stopping of the car before the pedal is removed. K

After the lug 12 on the toe pedal 9 vengages the lug 13 on the-casing, the operatormoves the pedal 9 outwardly along the square end of the stem 4 until the lug 12, lon the pedal, is vfreeofthe sto p 13, when the power of the torsion spring causes the stem 4, rotary valve and lever 9 to further rotate in a clockwise direction, such movement being stopped by a lug 14 on the collar 7 engaging the stop 13 on the casing. When the lug 14 engages the stop 13, the'brake valve device 1 will be in pedal olf position in which the brakes aremaintained applied.` It will thus be seen that afterv the pedal isin foot ofi position it is readily removable from the stem 4.

lIn applying the toe pedal 9, it is first placed on the stem 4'as shown in Figs. 6 and 7 and then operated forward to foot ofin position and in this position is moved inwardlyv along the stein 4 until the lug12 is in proper engagement with the stop 13 of the casing, as shown in Figs. 4 and 5, when the pedal may again be operated to control the operation of the brake valve device 1. When the pedal is moved from pedal off position to foot oftz position the lug 14 is moved free of the stop 13 so'that this lug 14 does not, in any way, interfere with the movement of the lug 12 into engagement Vwith the stop 13.

The door controlling valve device may comprise a casingA containinga rotary valve 15 having any desired arrangement of ports and cavities, for the proper control of the door or doors of the vehicle. For the purpose of operating this rotary valve an operating stem 16 is provided which stem is rotatably mounted in the casing, the axis of rotation o-f this stem being at an angle to the'axis of rotation of the stem 4 of the brake valve device.

Secured to the outer end of the stem 16, by a pin 17, is an operating member having a sleeve portion 18 in which a pin 19 is rotatably mounted. This pin extends through Vportion of the arm 22 Xtends into a slotted opening 23 formed in the arm of the toe kpedal 9 and is adapted to be operatively engaged bythe toefpedal.

Preferably integralwlth the arm 22, and projecting rearwardly therefrom, is a heel pad 24 which is adapted to be engaged by the side-ofy the operators heel, while the forward portion of his foot is in engagement with the toe pad 10 of the toe pedal 9.

The arm 21 is adapted to engage one end of the sleeve portion 18 and a head 25 of the pin is adapted to engage the opposite end of the sleeve portion so that the head 25 an-d arm 21 prevent undue movement of the pin 19 in the directions of its length.

Preferably integral with the sleeve portion 18, and extending outwardly therefrom,

is an arm 26 to which one end of an operating 1? spring 27 is attached, the other end of the spring being attached to the casing. This spring tends, at all times, to maintain the door controlling valve device in door closed position in whichthe arm 26 engages a stop 28 on the casingl as shown in Fig. 1. The door opening movement of the door control valve device being limited by the arm 26 engaging a stop 29 on the casing as shown in Fig. 2.

1n operation the toe pedal 9 is operated back and forth to control the operation of the valve device 1 and by reason of the engagement of the toe pedal with the arm 22 within the slotted opening 23, the heel pedal will be caused to move lin the same directions, but such movement will not cause the operation of the valve device 2 since the pin will rotate freely in the sleeve 18. It will thus bc noted that as the toe pedal 9 is operated the 1l heel pedal will be maintained in the proper position to be operated by the operators` heel. y

Vhen the operator desires to operate the valve vdevice 2, he moves his heel sidewise, ll

operating the .heel'vpedah through the medium of the heel pad 24, in the same direction, imparting a rotary movement to the sleeve portion 18 ofthe operating member,

operating stein 16 and rotary valve 15,

against the power of the spring 27, until such time as theI arm 26 engages the stop 29, when the valve device 2 vwill be in door open position. The operation of the valve device 2 to door epen position is 'shown in Fig. 2.

VVhenit is desired to close the vehicle door, the operator relieves his heel pressure from the heelpad 24 ofthe heel pedal and the power Iof the spring 27 acting through the arm 26 returns the heel pedal and rotary la.' im

l 20 the appended claims.

cnf.

nlari/infie? i valveto their-normal :positions` Y :sshoivn4 in tionot each of aplnrality or" rotary valve devices andin .which the foot pedals are, at

all times, maintained in positions to` gaged by the operators foot. i

While' one illustrative embodiment of th invention has been described in detaihitfis not the intention to limit its scope `to that embodiment or otherwise than by the terms of Havingnovv described my invention, ywhat I claim as nevv and desire to secure by Letters Patent, is y l. In a control mechanism, the combination With `tvvo` control valve` devices, of an -3 element operative in certain d'irectionsand controlledbv the toe portion of one toot ot an operator ior controlling the operation of one of saidvalve devices, and an element op` erative in' directions different from` the din rections of operation of the firstrmentioned element and` controlled by the heel portion ofthe saine foot; of the operator for vcon- 'trolling the operation of valve devices.

2. Ina control mechanism, Vthe combination With two control valve devices, of an element operative in certain directions Vand controlled by the toe portion oit' one foot of anoperator for contro-lliingthe operation of one "ofsaidfvalve devices, andan element` operative in directions different from the di- A rections ot operation of the first mentioned element and controlled by the heel portion of the same foot oit' the operator for controlling the operation of the other of said valve devices, the second mentioned element being movable by the iirst mentioned element for v at all times maintaining the relationshipbe tvveensaid elements such that both elements are adapted tobe engaged `by the foot `ofthe operator.` w Y i In a control mechanism, the combina tion With two control valve devices, oit a toc "pedal operative oiivardlyand baclnvardiy for controlling the operationof one of said valve devices, and a heel pedal operative by said toe pedal for maintaining the heel pedal in operative position relative to the toe pedal and `operative transversely and independent lyoi' the toe pedal forcontrollinp; the operation ot the other of said valve devices.

4. In acontrol mechanism, the combinau tion with tivo control valve devices, ot a toe pedal for controlling the operation of one ot be enthe other of said,l O i "operatedby" the operators toot toe "pedal isv operated.'

by said toe pedal for maintaining the heel pedal in operative position" relative to the toe pedal and operative ini directionsat an angle to the'direction of operation ofthe toe pedal for controlling the operation of the other 'of said valve devices.

' 5. In afvehicle brake and door controlling mechanism, the combination With a brake d valvedevice and a door controlling valve desaid valve devices, and a heel pedal movable i vice, off atoe` pedal `forl controlling the operation of said brake `valve device, a heel pedal adapted to be operated by said. toe pedalfor maintaining the heel `pedal in op-` erative position relative tothe toe pedal and f operative independently of the" toe pedal for .controlling the operation of said Adoor controllii'ig valvedevice, and a connection bei tween saidheel pedal and door controlling valve` device adapted ,to `permit said y heel pedalftoV operate `vvith the toe pedal Without operating` thedoorcontrol valve device.

6. In alvehicle brake and doorcontrolling mechanism, the combination with a brake valve"`*`device and a door `controlling ,valve devicefof. a toe pedal controlled by the forA Ward pressnreotan operators toot 'for controlling` the operation of said brake valve device, anda heel pedal controlled by the 'sidevvisepressnr-e of the same foot of the operator for controlling theoperatiori Vof i said door controllingvalve device, said pedals beingoperatively connected together toi' maintaining` the heel pedal in position to `be when said 7i In avehicle'brakeanddoor controlling mechanism, the combination with a brake valve device and a doorcontrolling valve device, of a toe pedal controlled bythe torvvai'd pressure of an operators `ootxtor` controlling the-operation ot' said brake" valve device, `a

`heel pedal controlledby the sidewise pressure `ofthe same foot of the operator for controlling the operation otsaid door controlling` valve .device andloperative by the toe pedal, Without'operatingthe door contro-lling valve device,"for maintaining the heel pedal `in operative position relative tothe toe pedal.

8. In a vehiclebralieand doorcontrolling,` f `mechanism,"the combination with a brake valveidevice, of a toe pedal subject to the or- `Ward pressure of a toot of an operator t'or controllingl the operation of said brake valve device, a door controlling valve device, a heel pedal for controlling-1y the operation oin4 said door controlling valve device operative by said `toe pedal Without` operating; the door controllingvalve device and subject to the sidewiseipressure ofthe operators foot tei" controlling the operation ot the door controlling valve device.. .1

9, In a `vehicle brake and valve device,ot aitoe pedalzsnbject tothe door controlling mechanism, the combination` with` `biale forward pressure of a foot ot an operator for tion of operation of the toe pedal for controlcontrolling the operation of said brake valve ling the operation of the other of said valves.

device, a door controlling valve device comprisingan operating' stem, a heel pedal for controlling` the operation of said stem and operatively connected with said toe pedal, and means connecting said heel pedal and stem adaptol to provide a lost motion connection between the heel pedal and'stenrwhen the heel pedal is operated by the toe pedal and adapted to provide a positive connection when the heel pedal is subject to the sidewise pressure ot the operators foot.

10. In a vehiele brake and door controlling mechanism, he combinationV With a brake valve device, of a toe pedal subject to the for- Ward pressure of a foot of an operator for controllingthe operation of said brake valve device, a door controlling valve device comprising` an operating stem, a heelpedal for controlling the operation of said stem and operatively connected with said toe pedal for maintaining the heel pedal in operative position relative to the toe pedal, and means connecting` said heel pedal and stem ladapted to provide a lost motion connection between the heel pedal and stem to permit the heel pedal to operate with the toe pedal Without operating the door controlling valve device and to provide a positive connection between the heel pedal and stem 'for operating ythe door controlling valve device When the heel pedal is subject to Vthe sidevvise pressure of the operators foot.

1l. In a control mechanism, the combination with tvvo rotary control valves, each of said valves being rotatable in a plane at an angle to the plane of rotation of the other, and foot pedals for controlling the operation of said valves adapted at all times to be engaged by one foot of an operator, one ot' said pedals beingl movable in one plane only for controlling the operation of one or" said valves and the other of said pedals being operative With the first mentioned pedal for maintaining said other pedal in position to be engaged by Y the operators toot and being operative in a diilerent direction and relative to thel iirst mentioned pedal for control-ling the operation of the other of said valves. i

l2. In a control meclianisni,'tlie combination with two rotary control valves, each of said valves being` rotatable in a plane at an angle to the plane of rota-tion of the other, a toe pedal for controlling the operation of one of said valves, and a heel pedal for controlling the operation of the other of said valves, said pedals being initially arranged to be respec tively engaged by the toe andheel of one toot of an operator, the toe pedal being operative in one plane only to control the operation of one of said valves and the heel pedal being movable With the toe pedal for maintaining the initial relationship of said pedals and operative in a diierent direction to the direc- In testimony whereof I have hereunto set my hand, this 12th. day of November, 1929.

, UNCAS A. WHITAKER. 

